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feat(ui): unify retained window mounts

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This commit is contained in:
Erik 2026-07-10 22:22:25 +02:00
parent 6e9e10367f
commit a8e9503d2e
20 changed files with 823 additions and 366 deletions
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21
tests/AcDream.App.Tests/UI/UiScrollableTests.cs
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@ -70,4 +70,25 @@ public class UiScrollableTests
s.ScrollByPage(1);
Assert.Equal(300, s.ScrollY);
}
[Fact]
public void SetExtents_PreservesEndButRetainsUserScrollback()
{
var s = new UiScrollable();
s.SetExtents(contentHeight: 400, viewHeight: 100, preserveEnd: true);
Assert.Equal(300, s.ScrollY);
// A scrollbar/wheel interaction moves off the end. Repeating layout with
// the same extents must not overwrite that user-selected position.
s.ScrollByLines(-1);
Assert.Equal(284, s.ScrollY);
s.SetExtents(contentHeight: 400, viewHeight: 100, preserveEnd: true);
Assert.Equal(284, s.ScrollY);
// Returning to the end restores auto-pin for newly appended content.
s.ScrollToEnd();
s.SetExtents(contentHeight: 500, viewHeight: 100, preserveEnd: true);
Assert.Equal(400, s.ScrollY);
}
}